CN1826622A - Robust position detection for a multi-stroke electronic brush display - Google Patents
Robust position detection for a multi-stroke electronic brush display Download PDFInfo
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- CN1826622A CN1826622A CNA2004800211223A CN200480021122A CN1826622A CN 1826622 A CN1826622 A CN 1826622A CN A2004800211223 A CNA2004800211223 A CN A2004800211223A CN 200480021122 A CN200480021122 A CN 200480021122A CN 1826622 A CN1826622 A CN 1826622A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/0304—Detection arrangements using opto-electronic means
- G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
- G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a method of activating an electronic paint ( 50 ). A registration code embedded in a first portion ( 20 ) of an image written on a portion of an electronic paint ( 50 ) is scanned. A position of an electronic brush ( 30 ) is determined based on the scanned registration code, and a second portion ( 22 ) of the image is written on the electronic paint ( 50 ) based on the determined position of the electronic brush ( 30 ).
Description
Present invention relates in general to electronic paint (paint) and activate, more specifically, relate to and a kind ofly image is written to method and system on the electronic paint with electronic-brush.
The electrophoresis of microencapsulation (MEP) material shows high optical reflection coefficient and contrast, wide visual angle, high resolving power and picture steadiness, and it has been introduced in the screen and display of PDA(Personal Digital Assistant), mobile phone, E-mail device and electronic reader.Because that the MEP material can be printed onto is big, on the flexible plastic sheet and be laminated on the various electrical backplane, the MEP display has been developed and has been used for flat computer monitor, blank and bulletin board.The researchist is devoted to the MEP material combined with the flexible transistor technology and produces high resolving power, the low-power displays that is used for indicating greatly and has the less application of the outward appearance of type face and form.The MEP display is very attractive because they than reflection LCD (LCD) bright six times, and different with LCD, can watch in any angle and not have variation on the contrast.
The MEP material is used as one type electric ink, is also referred to as digital ink, and it embodies the expection image on the MEP surface when activating.Electrophoretic display device (EPD) can be bistable, because their display element has first and second show states, these two kinds of show states are different on such as at least one optical characteristics of the brightness of color or darkness.In recent electrophoretic display device (EPD), the electronic impulse by the limited duration of microencapsulation particle in electric ink is driven to after a state or another, change in the display, and after voltage was eliminated, final show state continued.Such display and LCD (LCD) relatively have the characteristic of good brightness and contrast, wide visual angle, state bistability and low-power consumption.
The surface of example display comprises the thin electrocoating film with millions of minimum microcapsules, and wherein the white particles of positively charged and electronegative black particles are suspended in the limpid liquid.When negative electric field was applied to display, white particles moved to the top of microcapsules, and they are that the user can be observable there.This makes the surface look like white on the surface of tip position or microcapsules.Simultaneously, electric field is attracted to the bottom of microcapsules with black particles, and they stash there.When process reversed, black particles appeared at the top of microcapsules, and this makes the surface look like dark on the surface of microcapsules.When removing activation voltage, fixing image is retained on the display surface.Before writing another image, the electric ink of so-called display material can reset to clearly the state that limits before re-addressing ink, the complete white surface during such as the top that moves to microcapsules in white particles.This can force ink to enter a state by the electric field that applies and realize for example by applying quite high voltage at the preceding of display and rear electrode two ends.In the electrophoretic display device (EPD) of other types, when applying activation voltage, the photoconductive layer that clips the electrophoresis material of encapsulation between preceding and rear electrode is shone.Gates and other people United States Patent (USP) 6 at the Gates of issue on March 11st, 2003,531,997 " methods (Methods for AddressingElectrophoretic Displays) that are used for addressed electrophoretic display " have been described the addressing scheme that is used to control this bistable electronics addressable display.
Be used for the another kind of addressing system use high-resolution laser printer of imaging on the MEP material, this U.S. Patent application 2002/0057250 at the Michaelis of issue on May 16th, 2002 " is used for making electronic paper imaging method and device (Method and Apparatus for Imaging ElectronicPaper) " and is disclosed.The electronic paper of this system comprises the photoconductive layer of selenium, cadmium sulfide, photoconductive silicon or any organic photoconductor, its light source that is focused on optionally shines, thereby the electrostatic display cells that makes selection is subjected to the effect of this current potential, and image is written on the electronic paper.
Numeral or electronic ink technologies have the potentiality that expand large-scale electronic wall display to.When expecting semi-permanent image, thin, flexible MEP film is attracting for being placed on the big vertical surface as so-called electronic wallpaper, placard or wall screen.Suitable application comprises up-to-date shopping list, vacation photo or the large-scale e-advertising and the home wall displays of family's photo.
In the time of in being used in large-scale display application, large-scale electrophoretic display device (EPD) can only need to upgrade once in a while, has several days between the renewal, even a few week or some months.As a result, the most of e-ink system that are used for large-scale electrophoretic display device (EPD) do not have such as the inherent addressing scheme of the stationary coordinate on the grid of a pixel of a pixel-by-pixel basis and accurately write text and figure.By contrast, the active matrix of the at present available electrophoretic display device (EPD) of great majority by driving display receives data and is addressed.But driven with active matrix is not attracting selection for the display of not expensive similar bulletin board, and its needs are low to extremely low refresh rate.
The most methods, system and the relevant apparatus that are used for addressing and control electronic ink display concentrate on and are sent to computer-usable medium importing the surface of data from display, and then write Active Matrix Display, rather than be sent to display surface from computer-usable medium.The handheld personal computer of example, PDA or the mobile phone with network function use stylus or other indicating devices on the touch sensitive display of device by the user, perhaps write and draw to produce data on board.Current digital-ink technology can be from hand-written information extraction, comprises that stylus writing lip-deep contact pressure, vector, timing, coordinate and angle.
Accept input such as several systems display image of touch screen computer screen and from display surface.A use switching mechanism is described in the people's such as Koshimizu of issue on August 29th, 2002 U.S. Patent application 2002/0118400 " optics write device and optics write method (Optical Write Apparatus and Optical Write Method) " at the example that triggers between display mode and the WriteMode.Screen conversion applies light by the optics write device and comes input image data behind WriteMode on the Chosen Point of display, data can be input to computer control.
The exemplary method that is used for the active matrix of addressed electrophoretic display uses nonconducting brush, and this U.S. Patent application 2003/0053189 " method (Methods for Addressing Electro-Optic Materials) that is used for the addressing electrooptical material " the people such as Goenaga of issue on March 20th, 2003 is described.Nonconducting brush that this method detection is got wet and the potential difference (PD) between the display.Transport electron charge to the electrooptical material of display from the charged liquid in the pen, thereby make dark particle in the electrophoresis liquid of microcapsules arrive the top or the surface of microcapsules, it shows as with showing the bright background of liquid or light particle and forms the dark electric ink of contrast.
Developed some systems be used to detect electrophoresis and other types display input media the position and control this input media.Set up the relative positioning system and come detecting pen writing lip-deep motion, this U.S. Patent application 2002/0181744 the people such as Vablais on Dec 5th, 2002 " is used for a sensing ELECTRON OF MOTION module (Electronic Module for Sensing Pen Motion) " and is described.Electronic module is preferably mounted to be replaced in the ink cartridge, and comprises the accelerometer that is used for the detecting pen motion.The trajectory message that is produced by accelerometer sends to computing machine by radio transmitter, and wherein it can be treated for handwriting recognition and activate digital ink.
Has the electrophoretic display device (EPD) that to wipe the picture device United States Patent (USP) 6 the people such as Comiskey of issue on October 29th, 2002,473,072 " the electrophoresis electrostatically addressable medium (Microencapsulated Electrophoretic Electrostatical ly-AddressedMedia for Drawing Device Applications) of the microencapsulation that the device that is used for drawing is used " are disclosed.This display comprises electrophoretic display media, the rear electrode of encapsulation and is used to the travelling electrode writing or wipe.The display media of encapsulation comprises a plurality of capsules, and each capsule comprises a plurality of particles that are dispersed in the liquid.Apply electric field at rear electrode adjacent with the rear surface of display media and the display media two ends between the travelling electrode, it can adopt the form of marker or eraser, and contiguous front surface setting.
Be used for international monopoly WO9910769 and United States Patent (USP) 6 that the method for electrical addressing miniature electric ink display all was authorized in 12 days September in 2000 of people such as Albert, 118,426 " having the transducer of typographical display device and indicator (Transducer and Indicators having Printed Displays) is described in wide.The application of these displays that propose comprises the little adhesive label that is placed on the picture consumer goods of fruit, milk or battery, and it is by being used as new indicator through the state that changes display behind the special time.Other application comprises to be upgraded providing intermittently, perhaps useful those when specific pressure, heat, radiation, moisture, sound, inclination, pH or other threshold values are passed through in this position of display.Display system can use that radio frequency encourages, addressing and control display, and comprises one or more antennas, passive charging circuit, active guidance system, display and energy storage units.Independently transmitter provides remote power for display.Propose to allow modular system to be used for the display based on pinup picture (tile-based) of big printable area, and in substrate, be provided with track.
Use to be developed for the another kind of small-sized MEP display and be used for rewriteeing barcode displays, this JP2002/140659 at the Endo of issue on May 17th, 2002 is described in " having (the Sheet or the Like Having Rewritable Barcode DisplayingPart) such as thin slices that can rewrite the bar code display part ".Thin slice with bar code has bi-stable microcapsule layer, can write and control bar code image thereon by microcapsule layer being applied voltage.
The example of more complicated MEP display has been described at the WO0020923 " illuminator (Illumination System for Nonemissive ElectronicDisplays) that is used for non-ejected electron display " of the Comiskey of on April 13rd, 2000 issue.Each display element tiling, 3-D display structure multi-disc, elective irradiation to set up.This display can upgrade with visible light or other forms of electromagnetic radiation.
Although, be to use active matrix drive system can't save cost to bigger application for the addressing system of less electrophoretic display device (EPD) design can be used in bigger display.When using alternative passive-matrix to activate, when transmitting the data such as image or text during a plurality of strokes at write device on such as the variable-sized display surface of wall, large-scale electrophoretic display device (EPD) has other aligning and addressing issue.In a kind of method of using hand-held device, two ends at the preceding and rear electrode of electrophoretic display device (EPD) apply voltage, and the local conductivity that changes the photoconductor that clips between the electrode of hand-held laser scanner, thereby the electrophoresis material that causes encapsulation changes state on request.
For example, use the big system of the tiled arrays of display in the fixed power that keeps the adjacent pinup picture of leap, to avoid gap and dead band.In wall display technology, developed large data display process, subregion and be delivered to method on the wall such as the other types of light projection system.The large-scale projection display is set up with a plurality of display device, screen and a plurality of lens assembly, and this is described in the people's such as Dubin of issue on June 27th, 2002 U.S. Patent application 2002/0080302 " seamless tiled display system (Seamless Tiled Display System) ".Scalable seamless tiled display is subdivided into a plurality of parts, and each part is configured to show the image of subregion.One of lens assembly optics is couple on each part of each display device and projects on the screen with the sectional image that will show on this part.
Although aforesaid active array addressing system is practicable for the application of small-sized and large-scale costliness, the activation system that does not have the active array addressing scheme is that large-scale, not expensive wall or sign display is desirable.The device for addressing needs that are used for any type of electric ink can be write or the active electron ink.The system of device for addressing should store image or the text that is delivered to display.This device should assemble the position with identification or sensing apparatus, and pick-up unit is with respect to the position of display surface.
Aim at the method for the stroke of hand-held device in the time of will need being used on entire wall, needing a plurality of stroke to the passive electrophoretic material on the wall such as the data transfer of big picture or image.For example one meter connects at least five different strokes of hand-held device that one meter display can need to have the addressing mechanism of 20 centimeter length, roughly the same ground, and any wall that is sprayed needs a plurality of strokes of coating roll.Producing big image with electric ink needs process, thereby the position of input media can accurately be determined and a plurality of strokes above electronic ink surface do not cause the alignment artifacts of device.
Except those systems that use electrophoresis material, developed the system that adopts electronic display technology, be used for sensing or follow the tracks of hand-held device and minimize or eliminate overlap effect.The hand-held laser scanner of example can be measured three-dimensional surface when they smoothly move or be inswept near object, and data are sent to computing machine.Computer applied algorithm is converted to the image that computing machine generates with measurement data, and the scanning of finishing is scanned to develop the surface model of non-metallic objectsit is not a metal object in conjunction with overlapping.
In view of above discussion, the surface that needs a kind of effective, relatively cheap system and electronic installation to control and transfer data to large-scale electrophoresis wall display, and the problem of not aiming at and generally being associated with a plurality of strokes of write device.Therefore, the intent of the present invention provide a kind of system, method and the electronics active device that is associated so that: control and transmit numerical data to electrophoretic display device (EPD); Electronics generates picture, and does not have the alignment artifacts of device; Be provided for the method that writes to such electrophoretic display device (EPD), the electrophoretic display device (EPD) of the type need reset to white or black state before writing; And overcome challenge described above and obstacle.
One aspect of the present invention is the method for activation of electronic paint.Scanning registration code (registrationcode), registration code is embedded in the first of the image on the part that writes on electronic paint.Determine the position of electronic-brush according to the registration code of scanning, and on electronic paint, write the second portion of image according to the position of determining of electronic-brush.
Another aspect of the present invention is the system that is used for activation of electronic paint.This electronic paint activation system comprises the electronic-brush with electronic paint active device; Be coupled to the electronic-brush scanner of electronic-brush; With with electronic paint active device and electronic-brush scanner controller in electrical communication.The position of electronic-brush determines that according to the registration code in the first that is embedded into the image on the part that writes on electronic paint this registration code is by electronic-brush scanner scanning and be sent to controller.Electronic-paint write signal sends to the electronic paint active device according to the electronic-brush position slave controller of determining.
Another aspect of the present invention is the electronic-brush that is used for activation of electronic paint.This electronic-brush comprises the electronic-brush shell, be coupled to the electronic paint active device of electronic-brush shell, be coupled to the electronic-brush shell electronic-brush scanner and with electronic paint device and electronic-brush scanner controller in electrical communication.The position of electronic-brush determines that according to the registration code in the part that is embedded into the image on the part that writes on electronic paint this registration code is by electronic-brush scanner scanning and be sent to controller.Electronic-paint write signal sends to the electronic paint active device according to the electronic-brush position slave controller of determining.
According to below in conjunction with accompanying drawing to detailed description of the currently preferred embodiments, aforementioned and other feature and advantage of the present invention will become more obvious.The detailed description and the accompanying drawings only are to explanation of the present invention rather than restriction, and scope of the present invention is limited by appended claim and equivalent thereof.
Various embodiment of the present invention will be illustrated by accompanying drawing, wherein:
Fig. 1 is the diagram according to the system that is used for activation of electronic paint of one embodiment of the present of invention;
Fig. 2 a is the diagram according to the system that is used for activation of electronic paint of an alternative embodiment of the invention;
Fig. 2 b is the diagram according to the system that is used for activation of electronic paint of an alternative embodiment of the invention;
Fig. 3 is the diagram according to the electronic-brush of one embodiment of the present of invention;
Fig. 4 is the block diagram according to the system that is used for activation of electronic paint of one embodiment of the present of invention; With
Fig. 5 is the process flow diagram according to the method that is used for activation of electronic paint of one embodiment of the present of invention.
Fig. 1 shows the system that is used for activation of electronic paint according to one embodiment of the present of invention.Electronic paint activation system 10 comprises the electronic-brush 30 with electronic paint active device 34; Be coupled to the electronic-brush scanner 36 of electronic-brush 30; With the controller 40 that is conductively coupled to electronic paint active device 34 and electronic-brush scanner 36.Controller 40 can wired or wirelessly be connected to electronic paint active device 34 and electronic-brush scanner 36.Be embedded into registration code in the part that writes image and allow position probing the robust of multi-stroke electronic brush display, and when providing correct stitching, especially pixel of each in electrophoretic display device (EPD) or element between the adjacent image section behind the display that resets, to carry out an addressing especially like this.
First's 20 usefulness electronic-brush scanner, 36 scannings of predetermined image write on the part of the electronic paint on the electronic-paint surface 52 50 during its stroke formerly.Signal from electronic-brush scanner 36 is delivered to controller 40, and the analyzed electronic-paint registration code that partly writes in the image that is embedded into detection.The first 20 of predetermined image comprises the electronic-paint registration code of embedding, such as monomark, grid or according to the electronic-paint surface coordinate 28 of bar code or UPC sign indicating number coding, to allow to determine the position or the location of electronic-brush 30.Electronic-paint write signal sends to electronic paint active device 34 according to electronic-brush position slave controller 40.Also be used as electronic wallpaper on the wall although be depicted in, comprise that the electronic-paint surface 52 of electronic paint 50 also can be alternatively on desk, desk, floor, ceiling, bulletin board, blank or other suitable surfaces.
Electronic-brush 30 above the part of electronic paint 50, delineated or by the time, the part of predetermined image writes on the electronic paint 50.The predetermined image electric ink that comprises text, figure, picture or their combination, or for electrophoretic display device (EPD), optics addressing electric ink with comprise electric ink or the electronic paint of the electronic console of the other types of coating exploitation is write process and write on the electronic paint 50.Electronic-brush 30 above electronic-paint surface 52 by repeatedly the time, electronic-paint surface coordinate 28 is detected and analyzed determining electronic-brush location, thus predetermined picture can write under the situation of very close to each other, fluctuation or image shift.When the inswept electronic-paint surface 52 of electronic-brush 30, carry out to the rotation of electronic-brush 30 with when the compensation of prelocalization, and updated images information sends to electronic paint active device 34 to write on the electronic paint 50.During current stroke, the second portion 22 of predetermined image writes on the electronic paint 50 according to the position of determining of electronic-brush 30.The second portion 22 of predetermined image is write fashionable, and the part of predetermined image optionally writes on the embedding registration code in the first 20.New registration code can write on when writing second portion 22 on the not coded surface part of electronic paint 50, and wherein new registration code is embedded in the second portion 22 of predetermined image.For many stroke patterns picture, the last stroke of crossing over the electronic-brush 30 of electronic-paint surface 52 does not need to write the registration code of embedding.
Example electronic-brush 30 with surf zone relatively flat, elongated of band shape or strip is crossed the part of electronic paint 50 with addressing and activation of electronic paint 50.When electronic-brush 30 leap electronic paints 50 move or scan, comprise that the image of text, picture, photo or their combination transmits or writes on the electronic paint 50.In order to activate or to write on the electronic paint 50, can apply activation voltage at the two ends of electrophoretic display device (EPD), then the part of electronic paint 50 is for example used 34 addressing of electronic paint active device.By determining electronic-brush location and determining that according to this location right position on electronic-paint surface 52 writes predetermined picture and comes addressing electronic paint 50.After writing electronic paint, for example by removing the activation voltage at electronic paint or ink two ends, can stabilized image.
When the little rotation of electronic-brush 30 takes place during the inswept electronic paint 50 of brush, if rotation is not recompensed, then the result will be that the too much fluctuation and the aberration of predetermined image is sent on the electronic paint 50.The compensation of electronic-brush rotation can be partly definite by for example reading out in the two or more electronic-paint surface coordinate 28 that separate on the electronic paint 50 and determining that with respect to those electronic-paint surface coordinate 28 measurement of electronic-brush rotation comes.When electronic-brush 30 is crossed electronic paint 50, can determine the electronic-brush rotation, and when predetermined image writes, be used for the rotation of compensate for electronic brush.In one embodiment, the inclination sensor 56 that is attached to electronic-brush 30 provide tilt signals to controller 40 to determine the electronic-brush rotation.
Data, pixel and address information can be sent to and be stored in the electronic-brush 30, and image is write on the electronic paint 50 under the control of controller 40 onboard thereafter.Perhaps, the peripheral control unit 40 such as personal computer, laptop computer, personal digital assistant, amended cell phone, wireless device or digital computing system can be used in pixel and the address information that storage is associated with electronic paint 50.The controller 40 that can wired or wirelessly be connected to electronic-brush 30 can comprise predetermined image in database or the storer 42 such as storage card or memory stick.Selection and the operation of predetermined image before writing on the electronic paint 50 can be carried out by means of computer software with such as display 44 with as the hardware of the input media 46 keyboard or the mouse.Controller 40 can be had the Internet or a network and be connected 48 to produce, to select or to receive image information.
In order to allow continuous registration and accurately to write on the electronic paint 50, on electronic paint 50, write in the second portion 22 of image, can write such as the new electronic-paint registration code of electronic-paint surface coordinate 28 on the uncoded second portion 22 of predetermined image.In another embodiment, electronic paint 50 has with for example meticulous or fuzzy mark writes registration code on the electronic paint 50 in advance, thereby registration code can be read out, and it has minimum influence to the quality that writes image.
In some embodiments of the invention, accurate code be written in electronic-brush 30 cross over during first stroke of electronic-paint surface 52 especially crucial, thereby the location of electronic-brush 30 and rotation are accurately determined during stroke subsequently.One or more position detectors 38 can be attached to electronic-brush 30, to help to determine the position of electronic-brush 30 during first scanning of electronic-brush 30 and subsequently scanning or stroke.For example, the first tool position detector 38 such as wheel, tracking ball or their combination can be coupled to electronic-brush 30.More particularly, one group of wheel or tracking ball can provide position signalling, can determine electronic-brush rotation or electronic-brush location according to this position signalling.In another example, one or more optical position detector 38 such as the optical mouse that is used in computing machine those, can be coupled to electronic-brush 30.Position detector 38 and controller 40 telecommunications with according to the mobile electronic-brush position signal that provides of electronic-brush 30 to controller 40.Fig. 2 a shows the details according to the system that is used for activation of electronic paint of an alternative embodiment of the invention.In this is described, the registration code in the first 20 of the predetermined image on the left side detected electrons coating 50 of electronic-brush 30.When electronic-brush 30 was inswept in a downward direction, the electronic paint 50 in the first 20 of predetermined image was activated, and write the part of predetermined image selectively above the registration code that embeds.Write on electronic paint 50 in the part of predetermined image, new electronic-paint registration code is written on the uncoded second portion 22 of the predetermined image on the electronic paint 50.
With the simplest form, registration code can adopt the form such as the monomark 24 that is embedded in the cross-hair in the image.Registration code such as the other types of the array of monomark or grid 26 can be written into and be read out subsequently to determine the position of electronic-brush 30.Under the situation that electronic-brush 30 is raised or removes from electronic-paint surface 52 and the locating information of electronic-brush 30 may be lost or interrupt, can write on the electronic paint 50 such as the electronic-paint surface coordinate 28 of numbering coordinate, bar code, UPC coded digital or other suitable surface alignment information and identification.In one embodiment, the registration code with electronic-paint surface coordinate information is pre-written in the electronic paint 50.The registration code that writes in advance can rewrite with predetermined image, or is kept for subsequently image refreshing or renewal.During repeatedly passing through above the electronic-paint surface 52, the registration code with electronic-paint surface coordinate 28 of embedding allows more freedom of movement in electronic-brush 30.
Fig. 2 b illustrates the system that is used for activation of electronic paint according to an alternative embodiment of the invention.Similar with Fig. 2 a, the registration code in the first 20 of the predetermined image on the left side detected electrons coating 50 of electronic-brush 30.When electronic-brush 30 was inswept in a downward direction, the electronic paint 50 in the first 20 of predetermined image was activated, and write the part of predetermined image selectively above the registration code that embeds.When writing predetermined image a part of on electronic paint 50, new electronic-paint registration code writes on the uncoded second portion 22 of the predetermined image on the electronic-paint surface 52.In this is described, use pixel and strength information to write such as the registration code of monomark 24, grid 26 or electronic-paint surface coordinate 28 corresponding to the registration code zone, Pixel Information is by the predetermined image reorganization that writes.In other embodiments, the counter-rotating of being placed in view of the above of initial dark or black background or the registration code of reorganization use.
Fig. 3 illustrates the electronic-brush according to one embodiment of the present of invention.Electronic-brush 30 comprises the electronic-brush shell 32 with attached electronic paint active device 34 and attached electronic-brush scanner 36.Controller 40 be electrically coupled to electronic paint active device 34 and electronic-brush scanner 36 and with they telecommunications, and can wired or wirelessly be connected to electronic paint active device 34 and electronic-brush scanner 36.In order to handle and processing ease, electronic-brush 30 can comprise clamp lever 54.Electronic-brush 30 can comprise that the inclination sensor 56 that is electrically connected to controller 40 is to determine the electronic-brush rotation.
Electronic-brush scanner 36 comprises for example linearity or two-dimensional optical scanner, and it projects on the electronic paint laser beam that focuses on to detect the registration code such as monomark, grid or electronic-paint surface coordinate.According to the position of determining electronic-brush 30 from the signal corresponding to registration code of electronic-brush scanner 36, this registration code is embedded in the part that writes on the image on the electronic paint.Cross over the electronic-paint surface that has the registration code of embedding in the part that is writing image when being delineated when electronic-brush 30, electronic-brush scanner 36 provides signal.
Electronic-paint write signal sends to the electronic paint active device according to electronic-brush position slave controller 40.Electronic paint active device 34 uses for example laser scanner activation of electronic paint, the photoconductor in this laser scanner addressing electronic paint, and come the state of conversion electron coating or ink by the conductivity that the part changes photoconductor.
Electronic-brush 30 can comprise and electronic paint active device 34 and electronic-brush scanner 36 controller in electrical communication 40.Controller 40 comprises the location that is used for determining electronic-brush 30 and rotation and the image of correspondence write on application software and hardware on the electronic paint, but this controller 40 can be arranged in electronic-brush 30 or with the digital computing system of electronic-brush 30 operational coupled.When controller 40 was positioned at electronic-brush 30 outsides, electronic-brush 30 can receive image information by the wired or wireless connection of electronic-brush 30 being coupled to controller 40.The image information that receives can for example be stored in other suitable memory storages in memory stick or the electronic-brush 30.
Electronic-brush 30 can comprise the inclination sensor 56 that is attached to electronic-brush shell 32.The rotation of electronic-brush 30 can be determined according to the tilt signals from inclination sensor 56 that receives at controller 40 places.The inclination sensor 56 that comprises for example commercially available inclinometer, accelerometer or bubble detection device can be determined the direction that makes progress with respect to gravity.When electronic-brush 30 inswept electronic-paint surface and view data are written into, carry out compensation to the little rotation of electronic-brush 30.
Fig. 4 shows the block diagram according to the system that is used for activation of electronic paint of an alternative embodiment of the invention.Electronic paint activation system 10 comprises the electronic-brush 30 that is used for writing predetermined image on electronic paint.Predetermined picture can for example write with the electronic paint active device 34 that is coupled to electronic-brush 30.Predetermined image is written to determining of the position that is based on electronic-brush 30 on the electronic paint.The position of electronic-brush 30 can be by being embedded into the electronic-paint registration code in the predetermined image with for example linear or two-dimentional electronic-brush scanner 36 scannings, determine with respect to the location of the coded portion of electronic paint.
When writing predetermined image a part of on the another part at electronic paint, can write on the uncoded surface portion of electronic paint such as the new registration code of monomark, grid or electronic-paint surface coordinate.For example, the left-half of electronic paint active device 34 can be at the coded portion of the electronic paint below electronic-brush 30 left sides or is not write one section predetermined image on the coded portion, and the right half part of electronic paint active device 34 writes electronic-paint registration code reorganization or that embed on the not coded portion of the electronic paint below electronic-brush 30 right sides.
The electronic-brush position input can for example become or optical position detector 38a and 38b reception from one or more machines.New electronic-paint registration code based on the electronic-brush position input can be embedded in the predetermined image, and writes on the uncoded surface portion of electronic paint.For example, when electronic-brush 30 was crossed electronic-paint surface for the first time, the part of predetermined image write along the electronic-paint registration code that embeds.The electronic-brush above electronic-paint surface 30 subsequently pass through can with additional electronic-brush position input or synchronous with the electronic-paint registration code of scanning.After electronic-brush 30 was temporarily removed from electronic-paint surface, when turning back to electronic-paint surface after the brush stroke is finished, electronic-paint surface coordinate can be scanned to determine the location of electronic-brush 30.After confirming the registration code of scanning, can continue writing of electronic paint.
Reading and analyzing of two or more registration codes can be determined the electronic-brush rotation.Perhaps, the little rotation of electronic-brush 30 can be determined with the inclination sensor 56 that is attached to electronic-brush 30.Inclination sensor 56 can be determined the direction that makes progress with respect to gravity, and therefore the data that then will write on the electronic paint during the inswept electronic-paint surface of electronic-brush 30 are compensated.Tilt signals from inclination sensor 56 can be received at controller 40 places to determine the electronic-brush rotation.
The controller 40 that is electrically coupled to electronic paint active device 34 and electronic-brush scanner 36 receives input and sends write signal and is not equipped with 34 to the electronic paint activation.Controller 40 can be in inside be installed in electronic-brush 30, perhaps externally be arranged in digital computing system, for example be positioned at such as personal computer, laptop computer, personal digital assistant, amended cell phone or wireless device in electronic-brush 30 outsides.Controller 40 can wired or wirelessly be connected to electronic paint active device 34 and electronic-brush scanner 36.
Fig. 5 shows the process flow diagram according to the method that is used for activation of electronic paint of one embodiment of the present of invention.The electronic paint Activiation method comprise a plurality of steps determine electronic-brush the position and according to the brush position determine write or activation of electronic paint.
Electric ink or electronic paint need be reset under the situation of original state at electrophoretic display device (EPD), electronic paint is initialised to reset mode, as seeing at piece 80.For example, display can reset to the complete white state of electronic paint, and electronic paint activates with electronic-brush and causes that the electronic paint part becomes darker or to another change color that limits in advance.
Activate with electronic-brush at electronic paint and to make under other situations that electronic paint becomes whiter, electronic paint can reset to the black full state of electronic paint.Electronic paint might reset to other predetermined color and states, and this depends on electronic-paint technology.Suppose that display allows various shades of gray, thereby and the electronic paint that is initialised be complete white, then the activation of electronic paint will be according to some parts grizzle or the black of desirable image with electronic paint.Behind the reset operation, the previous image on the display is wiped effectively.
Based on the details of predetermined picture and electrophoretic ink, can determine the preferred orientation on the electronic-paint surface and the type and the intensity of registration code.For example, can determine that according to the image that will write black background still is that white background should be initialised.In another example, the registration code in the image of determining to write or the location and the density of indicator.In another example, determine to write registration code in the state identical and still use pixel and strength information that they are write on desirable position from predetermined image with background by marker is retained in.Do not support at image under the situation of particular registration code type, can modify the image that produces, require with the lowest threshold that surpasses scanner or determine be lower than in the zone of detection threshold to need how many markers such as in the zone of monomark device, increasing background level.
The input of reception electronic-brush position is as seeing at piece 82 places.The electronic-brush position input can for example receive from mechanical position detector or optical position detector.In some cases, when the electronic-brush scanned electronic-paint surface first time, in electronic paint, can there be registration code.Till registration code can be write in the electronic paint, provide the electronic-brush position signal from the input signal of the one or more position detectors on the electronic-brush always, determine the position and the rotation of electronic-brush according to these signals.
Cross for the first time in electronic-brush during the surface of electronic paint, electronic-paint registration code can be written on the uncoded surface portion of electronic paint when writing the part of predetermined image, as seeing at piece 84 places.Input is written on the not coded portion of electronic paint with view data the electronic-paint registration code of correcting one's mistakes based on electronic-brush position.The electronic-paint registration code of correcting one's mistakes can be adapted and be selected, thus this code interfere with image information not.For example, when image was darker in overlapping region, pixel can optionally be omitted to form discernible registration code in image.In overlapping region under the brighter situation, dim registration code can embed selectively at image, thereby they have the intensity of the detection threshold that is higher than electronic-brush scanner and can be detected by electronic-brush scanner.In the very bright part of image, can be written in the overlapping region and be retained in the there such as the dim registration code of point, the result forms minimum aberration to image.In a similar fashion, the background of image can be gained in strength to be enough to allow code to write just, and the result causes writing the very little reduction of the contrast ratio of image.In another example, electrophoretic display device (EPD) can reset to complete black or complete dark structure before the code of the part of writing image and embedding; Perhaps around picture, write thin sideline as the starting point that clearly limits.When registration code and reference background difference at least during the gray level of predetermined quantity, can detect pixel groups, its detection limit by electronic-brush scanner partly is provided with.For example, registration code can comprise simple sequence of bars or more complicated code, such as the numeral of coordinate, the bar code of numbering, UPC coding or be embedded into other suitable surface alignment marks in the electronic paint image.In another embodiment, be used for electronic-brush position from position input and determine, comprise location and rotation such as the position detector in the electronic-brush of wheel with rotation sensor.In another embodiment, the driving wheel with force feedback of the electronic-brush of being coupled to is controlled so that brush remains on the straight line and controls the position of this brush.
In most of previous embodiment of the present invention, the electronic-paint registration code of embedding is written in the overlapping region between two strokes of electronic-brush.By writing of pixel during skip pictures overlaps partly selectively, positional information can be embedded in the image and write above the stroke subsequently of electronic-brush.In the indelible ink that for example applies when making is preset at registration code embodiment on the electronic paint, does not need position detector and do not need to write new registration code.
After writing on required image and registration code on the electronic paint and finishing first stroke, electronic-brush can move and locate once more the other stroke of crossing over electronic-paint surface to carry out.
The scanning electron paint registration code is as seeing at piece 86 places.Electronic-brush read registration code with provide predetermined image accurately write and with distortion minimization, particularly in overlapping region.Electronic-paint registration code is embedded in the part of the image on the part that writes on electronic paint.Electronic-paint registration code can comprise for example monomark, grid or electronic-paint surface coordinate.The scanning registration code allows the position of electronic-brush to be determined.For example, scanning is embedded in the embedding registration code in the first of the image on the part that writes on electronic paint.
The electronic-brush rotation can be determined by for example reading the two or more registration codes that write on the electronic paint.Perhaps, the enough tilt signals that receives from the inclination sensor that is attached to electronic-brush of electronic-brush energy of rotation are determined, as seeing at piece 88 places.From the signal indication of the inclination sensor brush angle with respect to gravity vector, and this signal controlled device is handled to determine electronic-brush rotation and therefore compensating image data.
The position of electronic-brush is determined, as seeing at piece 90 places.For example, the controller analysis that communicates with electronic-brush output is from the registration code data of the embedding of electronic-brush scanner, thereby can determine the position of the registration code that embeds.When having determined the position of registration code, can determine electronic-brush with respect to the position of the coded portion of the electronic paint of registration code, and therefore can correspondingly write electronic paint with embedding.The additional portions of image is fashionable by writing with electronic-brush overlapping subsequently, and the accurate positional information of needs provides the correct stitching between the image adjacent part.
When electronic-brush was brushed electronic-paint surface, electronic-brush need compensate so that level and smooth, undistorted image is write on the electronic paint with respect to the rotation on the surface of electronic paint.The electronic-brush rotation can be determined according to the tilt signals that receives from the inclination sensor that is attached to electronic-brush.Perhaps, the electronic-brush rotation can be determined based on electronic-paint registration code.For example can and read two monomarks or check that registering grid determines the electronic-brush rotation by scanning.
For example, by scanning and read the location that the electronic-paint surface coordinate that writes on the electronic paint is determined electronic-brush.Use is such as the permanent datum x in the lower left corner of distance such as electronic-paint surface and the coordinate of y length, and electronic-paint surface can be removed and turn back to electronic-brush, and wherein system can determine electronic-brush location once more by reading coordinate.
The extention of predetermined image is write on the electronic paint according to the position of determining of electronic-brush, as seen at piece 92.The predetermined image that comprises text, figure or picture for example writes with the electronic paint active device that is attached to electronic-brush.The electronic paint active device according to the type of electric ink that uses or coating with electric ink or coating from the white transition to black, from the black transition to white, or be transformed into the color of wanting.In case after the electronic paint conversion, electronic-brush can move or remove, and image is kept by electronic paint.In some embodiments of the invention, in case the position of electronic-brush has been read and determined to the registration code that embeds, include a part that writes image above the embedding registration code that selectively formerly writes part in the extention that writes predetermined image on the electronic paint.
When electronic paint write on the part of electronic paint with at least a portion of predetermined image, the new electronic-paint registration code that is embedded in the image can write, as seeing at piece 94 places.For example, new electronic-paint registration code comprises monomark, grid or electronic-paint surface coordinate.For example, when writing the second portion of image with the registration code that embeds, new registration code writes on the uncoded second portion such as the electronic paint of overlapping region.For example, the left-hand component of electronic paint active device sends the data about predetermined image, and the right-hand component of electronic paint active device sends the data that are associated with new registration code simultaneously.When brush scanned next time, new electronic-paint registration code was scanned and is used for determining the position of electronic-brush, thereby the extention of predetermined image can accurately write in the electronic paint.
Electronic-brush was removed and turned back to the electronic-paint surface that electronic-paint registration code is scanned, as seeing at piece 96 places by finishing with stroke subsequently and the part of predetermined image is write fashionablely the first time of electronic-brush.When electronic-brush leap electronic paint moves, the monitored and renewal of the location of electronic-brush and angle, thus image information can suitably be handled and be write on the electronic paint.The step of piece 86 expressions and step subsequently repeat, till entire image is write on the electronic paint.For bigger image, electronic-brush can repeatedly be crossed electronic paint to constitute complete picture.Electronic-brush location and rotation accurately determine to have reduced the alignment artifacts that can cause by a plurality of strokes of brush.
Whole strokes of brush are finished and image generate finish after, electronic-brush can be removed from wall or surface, up to image need upgrade or the image that need refresh till, as seeing at piece 98 places.
Think preferably under the situation that does not break away from the spirit and scope of the present invention, can make various changes and modification although embodiments of the invention disclosed herein are current.Scope of the present invention shows in the appended claims, and the whole variations that draw from the implication of equivalent and scope are intended to be included in wherein.
When explaining appended claim, be to be understood that:
A) word " comprises " other elements do not got rid of in being listed in given claim those or the existence of action;
B) word of element front " " or " one " do not get rid of the existence of a plurality of this elements;
C) any reference number in the claim is only long-pending is the protection domain that limits them for illustrative purposes and not;
D) several " devices " structure or functional representation that can realize with identical item or hardware or software; And
Each disclosed element can comprise hardware components (for example, discrete electronic circuit), software section (for example, computer program) or their combination in any.
Claims (20)
1, the method for a kind of activation of electronic paint (50) comprising:
Scan the registration code in the first (20) that is embedded into the image on the part that writes on electronic paint (50);
Determine the position of electronic-brush (30) according to the registration code of scanning; And
On electronic paint (50), write the second portion (22) of image according to the position of determining of electronic-brush (30).
2, method as claimed in claim 1 wherein, comprises a part that writes image on the registration code that is optionally embedding at the second portion (22) that writes image on the electronic paint (50).
3, method as claimed in claim 1 also comprises:
When writing the second portion of image (22), on the uncoded second portion (22) of electronic paint (50), write new registration code, wherein new registration code is embedded in the second portion of image (22).
4, method as claimed in claim 3 wherein, is write new registration code and is comprised one that writes in monomark (24), grid (26) or the electronic-paint surface coordinate (28).
5, method as claimed in claim 1 also comprises:
The input of reception electronic-brush position; With
The registration code of reorganization is write in input on the uncoded surface portion (22) of electronic paint (50) according to electronic-brush position.
6, method as claimed in claim 5, wherein, the electronic-brush position input receives from one of mechanical position detector (38) or optical position detector (38).
7, method as claimed in claim 1 also comprises:
Receive tilt signals from the inclination sensor (56) that is attached to electronic-brush (30); With
Determine the rotation of electronic-brush (30) according to the tilt signals that receives.
8, method as claimed in claim 1 also comprises:
Electronic paint (50) is initialised to reset mode.
9, method as claimed in claim 8, wherein, the electronic paint after the initialization (50) resets to predetermined color.
10, a kind of system that is used for activation of electronic paint (50) comprises:
The electronic-brush (30) that comprises electronic paint active device (34);
Be coupled to the electronic-brush scanner (36) of electronic-brush (30); With
With electronic paint active device (34) and electronic-brush scanner (36) controller in electrical communication (40), wherein the position of electronic-brush (30) is determined according to the registration code in the first (20) that is embedded into the image on the part that writes on electronic paint (50), this registration code scans and is sent to controller (40) by electronic-brush scanner (36), and wherein electronic-paint write signal sends to electronic paint active device (34) according to the electronic-brush position slave controller of determining (40).
11, as the system of claim 10, wherein, the registration code of embedding comprises in monomark (24), grid (26) or the electronic-paint surface coordinate (28).
12, as the system of claim 10, also comprise:
Be coupled to electronic-brush (30) and with the position detector (38) of controller (40) telecommunication, wherein position detector (38) according to the mobile electronic-brush position signal that provides of electronic-brush (30) to controller (40).
13, as the system of claim 12, wherein, position detector (38) comprises at least one in mechanical position detector (38) or the optical position detector (38).
14, as the system of claim 10, wherein, the wired or wireless controller (40) that is connected to of electronic paint active device (34) and electronic-brush scanner (36).
15, as the system of claim 10, also comprise:
Be attached to the inclination sensor (56) of electronic-brush (30), wherein locate to be received to determine the electronic-brush rotation at controller (40) from the tilt signals of inclination sensor (56).
16, a kind of electronic-brush (30) that is used for activation of electronic paint (50) comprising:
Electronic-brush shell (32);
Be coupled to the electronic paint active device (34) of electronic-brush shell (32);
Be coupled to the electronic-brush scanner (36) of electronic-brush shell (32); With
With electronic paint active device (34) and electronic-brush scanner (36) controller in electrical communication (40), wherein the position of electronic-brush (30) is determined according to the registration code in the part that is embedded into the image on the part that writes on electronic paint (50), this registration code scans and is sent to controller (40) by electronic-brush scanner (36), and wherein electronic-paint write signal sends to electronic paint active device (34) according to the electronic-brush position slave controller of determining (40).
17, as the electronic-brush (30) of claim 16, wherein, wired or wireless electronic paint active device (34) and the electronic-brush scanner (36) of being connected to of controller (40).
18, as the electronic-brush (30) of claim 16, also comprise:
Be coupled to electronic-brush (30) and with the position detector (38) of controller (40) telecommunication, wherein position detector (38) according to the mobile electronic-brush position signal that provides of electronic-brush (30) to controller (40).
19, as the electronic-brush (30) of claim 18, wherein, position detector (38) comprises at least one in mechanical position detector (38) or the optical position detector (38).
20, as the electronic-brush (30) of claim 16, also comprise:
Be attached to electronic-brush (30) and with the inclination sensor (56) of controller (40) telecommunication, wherein the tilt signals from inclination sensor (56) allows to determine the electronic-brush rotation.
Applications Claiming Priority (2)
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| US48960703P | 2003-07-24 | 2003-07-24 | |
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| EP (1) | EP1652148A1 (en) |
| JP (1) | JP2006528807A (en) |
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| CN110945461A (en) * | 2017-07-25 | 2020-03-31 | 罗伯特·博世有限公司 | Drawing device with projection unit |
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| US8281142B2 (en) | 2005-01-20 | 2012-10-02 | The Invention Science Fund I, Llc | Notarizable electronic paper |
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| US20140168201A1 (en) * | 2005-05-12 | 2014-06-19 | Searete Llc | Alert options for electronic-paper verification |
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| US11448632B2 (en) | 2018-03-19 | 2022-09-20 | Walmart Apollo, Llc | System and method for the determination of produce shelf life |
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- 2004-07-21 WO PCT/IB2004/051277 patent/WO2005010822A1/en not_active Application Discontinuation
- 2004-07-21 KR KR1020067001641A patent/KR20060052875A/en not_active Application Discontinuation
- 2004-07-21 CN CNA2004800211223A patent/CN1826622A/en active Pending
- 2004-07-21 EP EP04744632A patent/EP1652148A1/en not_active Withdrawn
- 2004-07-21 TW TW093121680A patent/TW200516333A/en unknown
- 2004-07-21 US US10/565,659 patent/US20060244718A1/en not_active Abandoned
- 2004-07-21 JP JP2006520973A patent/JP2006528807A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104737119A (en) * | 2012-06-05 | 2015-06-24 | 笔时代公司 | Reflective display and electronic pen system using same |
| CN110945461A (en) * | 2017-07-25 | 2020-03-31 | 罗伯特·博世有限公司 | Drawing device with projection unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060244718A1 (en) | 2006-11-02 |
| TW200516333A (en) | 2005-05-16 |
| EP1652148A1 (en) | 2006-05-03 |
| WO2005010822A1 (en) | 2005-02-03 |
| JP2006528807A (en) | 2006-12-21 |
| KR20060052875A (en) | 2006-05-19 |
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